Chemistry- Unit 1
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Last updated 2:16 PM on 10/3/22
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47 Terms
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Groups
Columns on the periodic table
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Periods
Rows on the periodic table
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18
Number of Groups on the periodic table
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7
Number of Periods on the periodic table
5
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Matter
substance that has mass and volume
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States of Matter
Solid, liquid, gas, and plasma
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solids
Black elements on the periodic table
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liquids
Blue elements on the periodic table
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gases
Red elements on the periodic table
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synthetic
white elements on the periodic table (artificial elements)
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Plasma
a state of matter that includes things like fire, lightning, and stars
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Condensation
the process of changing from a gaseous to a liquid state
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boiling/vaporization
liquid to gas
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freezing/fusion
liquid to solid
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melting
solid to liquid
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sublimation
solid to gas
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deposition
gas to solid
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density
measure of compactness of particles of matter
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endothermic
occurring or formed with absorption of heat
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exothermic
occurring or formed with the liberation of heat
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solute
the dissolved matter in a solution; the component of a solution that changes its state
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solvent
a liquid substance capable of dissolving other substances
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diatomic elements
elements that are always found as two bonded
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compounds
particles of multiple different elements bonded together
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elements
particles that are identical in properties
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heterogeneous
different components visible and separable
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homogeneous
looks like one thing and can't be separated without science
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Atom
the simplest structural unit of an element or compound
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substance
anything with every particle being the same
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mixture
a substance consisting of two or more substances mixed together
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solution
anything with something else dissolved in it
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Metals
Elements in groups 1-12(except H and 110 onward), elements 31, 49, 50, 81, 82, 83, Lanthanides, and Actinides
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Semi metals
Elements 5, 13, 14, 32, 33, 51, 52, and 84 (Staircase)
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Non Metals
Elements in groups 17 and 18, elements, 1, 6, 7, 8, 15, 16, 34
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Alkali metals
Elements in group 1 (except H)
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Alkali Earth Metals
Elements in group 2
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Chalcogens
Elements in group 16
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Halogens
Elements in group 17
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Noble gases
Elements in group 18
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Transition metals
Elements in group 3-12 (Except 110, 111 and 112)
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Lanthanides
Elements in top row of bottom part of the periodic table
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Actinides
Elements in bottom row of bottom part of the periodic table
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Rare Earth metals
Elements 21, 39, 57, and lanthanides
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diatomic elements
H, N, O, F, Cl, Br, I
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Properties of metals
malleable, conductor of electricity/heat, ductility, luster, almost all metal
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Properties of semimetals
semi-malleable, mostly bad at conducting electricity/heat (except Si), semi ductile, semi shiny, all elements are solids
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nonmetals
brittle, insulator, low tensile strength, dull, mostly gases
